Metal Roofing is desirable over asphalt shingles for a number of reasons. Advanced Metal Roofing^® products come with a Limited Lifetime Warranty while asphalt roofs come with limited warranties. In many cases, the asphalt shingles may not even last as long as the warranty and that doesn't always cover necessary repair or replacement. Newer asphalt shingles are also found to contain filler content such as sand that reduces the effectiveness of the shingles.

Metal Roofs are energy efficient and recommended by the US Government to help protect the environment while saving consumers considerable costs on their heating and cooling bills. Asphalt shingles generate a significant amount of landfill waste every year. That amount will keep on growing with the constant repair and replacement of asphalt roofs. Just look at what a few roofing and home improvement industry experts have to say on this matter:

Asphalt Manufacturers Say:
"Due to the severity of the roof environment, even a one year old roof may look different from a roof that was just installed. While you may have first noticed the cracks or blistering from the ladder as you were cleaning the gutters, please be mindful that these normal weathering characteristics may not be visible when you view your roof from your front lawn or driveway."
--Certainteed

Laboratory Testing Facilities Say:
"Failed shingles that we have tested contain approximately 30% asphalt by weight. New shingles contain less than 25%. This asphalt is mixed with sand and fine mineral matter and then has granules embedded in it. There is no seperate asphalt mat "coating"; there is only asphalt binder for the filler. What coating exists on the back of the shingle appears to have bled through the mat from the top side during manufacture. No wonder shingles "weep" water after only a few years."
--Richard Tippet, Applied Roofing Technology

Roofing Consultants Say:
"The pressures placed on large, public companies to maintain profitability brought forward good old American ingenuity, reduce fiberglass mat weight (fibers were expensive) and increase filler content (asphalt was also expensive.)"
--Dwain Bouton, President of Certified Roofing Consultant

Home Improvement Experts Say:
"When it comes to shingles, the drawbacks center on service life. While asphalt shingles come with warranties ranging from 20 to as long as 45 years, roofers and builders remain skeptical of those warranties. Since warranties are a marketing device, they are not reliable predictor of lifespan. In the past decade, there have been many complaints of asphalt shingle failure long before warranties expired. Many homeowners have been dissatisfied with warranty payouts that didn't cover all the costs of repair or replacement as well.."
--Bob Vila